Support for air-pumps of bicycles and like vehicles



A. MOSCA.

SUPPORT FOR AIR PUMPS 0F BICYCLES AND LIKE VEHICLES.

APPLICATION FILED DEC. WI 1920.

Patented July 19, 1921.

UNITED STATES PATENT OFFICE.

ALESSANDBO MOSCA, O1" TURIN, ITALY.

SUPPORT FOR AIR-PUMPS OF BICYCLES AND LIK E VEHICLES Application filed December 10, 1920. Serial 1() all whom it may concern .Be it known that I, ALESSANDRO Meson, a subject of the King of Italy, residing at Turin, Italy, have invented certain new and useful Improvements in and Relating to Supports for Air-Pumps of Bicycles and like Vehicles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

he arrangement used u to the present for holdin the air pumps For tires of bicycles and t e like consists of a fixed center and of a movable lock having its end point shaped. The pump is mounted between the said members and is usually arran ed on a tube of the frame of the bicycle and held in position under the action of a spring which has a tendency to maintain the lock in its locking position.

The ump thus supported may be easily removed by sliding it axially in such a man ner as to overcome the reactlon of the loekin device until it from the fixed center. That is why the sup porting arrangements which have been hitherto proposed do not offer any stability nor any guarantee against theft.

The present invention has for its object an arrangement for carrying the pump, characterized in this that the fixing bolt is laced under the control of a lock and can he opened only by means ofa suitable key for operating the mechanism of the lock itself. Thepresent supporting arrangement is further characterized by the peculiar shape of the locking mechanism and by other details of construction as hereinafter more particularly referred to.

One mo e of carrying the invention into effect has been illustrated by way of example only in the accompanying rawings, in whlch,

. Figures 1 and 2 are vation and an end view of the supporting arrangements.

Fig. 3 is a longitudinal section at a larger scaleof the bolt and the locking mechanism.

Fig. 4 is a transverse section along the line we, 5+- of Fig. 3.

of the spring is disengaged Specification of Letters Patent.

respectively a side eleprovide a the present invention comprises (see Fig l) a fixedcenter 1 and a movable lock 2 and having its end point shaped, the pump 3 being mounted between the center 1 and the bolt 2. The center 1 is rendered integral with the support 4, which consists for instance of a box made of stamped sheet metal of any suitable shape fixed to the tube 5 of the frame of the bicycle, for instance, by means of an open collar 6 integral with the support 4 bent around the tube 5 and pressed against the opposite face of the support 4 by means of a nut 7 screwed on the screw threaded pivot 8 projecting on the said support andpassing through a suitable hole provided at the end of the said collar. The movable bolt 2 is mounted in such a manner as to be able to slide axially inside a box made of stamped sheet iron and preferably made of two parts 9, 9' riveted to each other and designed to inclose the locking mechanism, the box itself being also fixed to the tube 5 of the frame by means of a collar 6 and the nut 7 being screwed on to the screwthreaded pivot 8 integral With-the front part 9 of the box. The end of the screw-threaded pivot 8 may be slightly expanded by punching after tightening of the nut 7 as shown in Figi 4 with the object of preventing any moving either of the support 4 01' of the box 9, 9'.

If it is desired to prevent the removal of said element in an absolutely certain manner, use may be made of the automatic mode of fixation shown in Figs. 6 and 7 as regards the box 9, 9., the arrangement of the support 4 remaining the same. According to this arran ement the free end of the collar 6 is provided with a member 6 having inclined teeth. 6", which member 6 passes through the opening 9*. of 9 and engages with the obli uely cut edge 2250f the member 22 3 inside -"-9' pressed upward by thes ring 23 andheld while still capable of oscill giting slightly below the shoulder 24' of one of the rivets 24 which serve to fix the two parts 9, 9 of the box to each-other,

- Patented July 19, 192L Owing to this arrangement, it is enough to lnsert the member 6 through the opening 9* as far as possible in order to close the collar 6. The edge 22 engages then one of theteeth 6 under the action of the spring 23 and will effect an automatic locking of the whole arrangement.

A preferred form of construction of a locking mechanism according to the present invention is as follows The bolt 2 which is capable of sliding axially inside the box 9 has a tendency of being brought in its opening position shown in clotted lin i F g.- 1 by the spr glo fixed at one end to the projection 11 provided on the rod 12 of the bolt, and at the other end to the edge of the backpart 9 of the box. By pressing the button 13 providedat the end of the rod 12, the bolt may be brought hand in its closing positioir shown in fulllines in Figs, 1 and 3 in which it is locked by thelocking member as will. e 62 ila hed here na t The two extreme positions of the bolt are respectivelyllmiifid by the collar 2 of the bo t and y th bu o 13 abuttin agai s th dge of h ox The'lockjing mechan sm consists of several flat pawls ent at a ight ng e unted s a o be capable of scil t g Q e Pi o 15 integral with 9 and iorming,.for instance, one of the rivets which assembles the two Pa ts 9, of th box: Th han 1 P vided with teeth 14 abut against the shoulder 2" of the bolt 2 when the latter has been fo c d i it c os d po t the e y We venting its return to the opening position. The engagement of theteeth of the pawls with the said shoulder is produced by the spring 16 placed in a suitable recess or the box 9, 9 and acting npon'thcends 1 1 of the said pawls. Several. fixed plates 17 work in combination with the pawls 14:, the saidplates being also bent at a right angle, being preferehly mounted on the same pivot 15 of the bolt and bearing with their ends 17' on one side against another pivot 18 iQrming anotllfilf assembling rivet oi the two parts?), 9' of the box, and on the other side against th bo y f th ol 2. e en s l? f he plat sfl pp ia y narrower than the ends 14: ofthe pawls 1.4; in such a manner that the spring 16 bears only on'the ends 14 and not on the ends 17". In the example shown in thedrawing s, there are three plates'l'? and two pawls 14' inserted between the said plates.

The arrangement r'or guiding the key co sts of a Slee e 9 ith a s m ed so as to be capable of rotating between the walls of the box 9, 9', which serves to gnide the key 29 in its movement of rotation after it has been introduced in the hole 21 of the lock. The flat key 20 may be of stamped sheet metal and capable of actuating the mechanism of the above described lock, and provided with two projections 20 suitably arranged so as to act upon the internal edges of the ends i l of the pawls 14:, while the body of the key is suitably recessed between the said projections and on their sides according to the positions occupied by the ends 17 ot the fixed plate 17. The said key inserted in the look as shown in dotted lines in Fig. 3 may be rotated in the direction shown by the arrow because owing to the recesses provided between the projections 20 of the key and on their sides. the latter can play freely between the ends 117 of the fixed plate 117, while each projection 20 will act from theiinsidc on the ends ll oi the holes 14 and bring the latter in the position marked in dotted lines in Fig. 3, that is, with their teeth '14: out of engagement with the shoulder 9 of the bolt which under the action of the spring 10 is brought back into its opening position. I It is obvious that when the number of pawls 14 of the fixcd plate 17 and the respcctive position of the said member is varied, it is also necessary to vary the relative position of the projection 20 of the key and of the/recesses between them. It is therefore possible to have an extended scrics of keys. According to the above described ar rangement, the fixing in position of the pump is efiected by placing th latter between the fixcd center 1 and the pointed end of the bolt- 2. and by pushing the latter by and into its closing position in which it re- Illains fixed by the lock; in order to remove the pump it is necessary to use the key which brings the bolt back into its opening position. However, nothing prevents the use oi any other locking device which would ncccssitate, for instance, a key for bringing the bolt into its closing position. I

It is obvious that the present invention is not to be limited to the particular arrangements described above and illustrated, and it may be varied in many respects without dc )arting from the spirit of the invention.

jlaving now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is l. A device for carrying the air pump for tires of bicycles and other vehicles. comprising a fixed center and a movable bolt between which the pump is placed in position, characterized in this that the fixing bolt is placed under the control of a lock, and can be opened only by means of a, key which is suitable for operating the locking mechanism.

2. An arrangement for carrying the air pump for tires of bicycles and other vehicles as claimed in claim 1, characterized Sli in this that the fixing bolt is slidingly the pawls, While the key operating locking mounted in a supportin box containing the mechanism is provided with projections actlocking mechanlsm, 811C? is brought into its ing upon the ends of pivoting holes for the opening osition by means of a spring, is purpose of disengaging the latter from the brought y hand into its closing osition, shoulder of the lock, the said key having 30 and is fixed in the latter by means 0? the fixnotches corresponding with the fixed plate ing elements of the locking mechanism, with the object of allowing a free rotation while its release is effected by means of a of the key. key which acts upon the said locking ele- 4. An arrangement for carrying the air ments and disen a es them from the bolt pump for tires of bicycles and other ve- 35 which comes bac into its opening position hicles and claimed in claim 1, an automatic under the action of the spring. arrangement for fixing the box shaped sup- 3. In arrangement for supporting the air port of the fixed center and the bolt to the pump for tires of bicycles and other vetube of the frame of the bicycle and like veicles as claimed in claim 1, a locking mechhicles, characterized in this that the fixing 40 anism characterized in this that the locking collar is provided at its free end with a elements of the bolt in its closing position member provided with teeth designed to enare formed by several retaining flat pawls gage automatically when passing through bent at a right angle, mounted in such a the wall of the box shaped support with a manner as to be capable of oscillating on a resilient retaining tooth placed inside the 45 single pivot and designed to engage under said box and engaging with the teeth of the the action of resilient means against the member integral With the collar. shoulder of the bolt, said retaining pawls In testimony that I claim the foregoing working in combination with several fixed as my invention, I have si ed my name. plates combined in a certain manner with ALESSAi R0 MOSCA. 

